Add new rules file for review, better ideas, not used yet

1 files changed, 216 insertions, 0 deletions

diff --git a/Makerules b/Makerules
new file mode 100644
index 000000000..e723a5553
--- /dev/null
+++ b/Makerules
@@ -0,0 +1,216 @@
+#
+compile.c = $(CC) -c $< -o $@ $(CPPFLAGS) $(CFLAGS) $(ARCH_CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$@) $(CFLAGS-$<)
+compile.S = $(compile.c) $(S_CPPFLAGS) $(ASFLAGS) $(ARCH_ASFLAGS) $(ASFLAGS-$(suffix $@)) $(ASFLAGS-$@) $(ASFLAGS-$<)
+
+#S_CPPFLAGS = -D__ASSEMBLER__ $(asm-CPPFLAGS)
+
+ifeq ($(DOPIC),y)
+DISABLE_PIC := $(PICFLAG)
+else
+DISABLE_PIC := -fno-PIC
+endif
+
+# objects
+ifeq ($(strip $(CSRC)),)
+CSRC = $(wildcard *.c)
+endif
+COBJ = $(CSRC:.c=.o)
+COBJ_PIC = $(COBJ:.o=.os)
+
+#MSRC = some.c
+#MOBJ = has to be defined if used
+MOBJ_PIC = $(MOBJ:.o=.os)
+
+#SSRC = $(wildcard *.S)
+SOBJ = $(SSRC:.S=.o)
+SOBJ_PIC = $(SOBJ:.o=.os)
+
+#ARCH_DIR = $(TARGET_ARCH)
+#ARCH_CSRC = $(wildcard $(ARCH_DIR)/*.c)
+ARCH_COBJ = $(ARCH_CSRC:.c=.o)
+ARCH_COBJ_PIC = $(ARCH_COBJ:.o=.os)
+
+#ARCH_SSRC = $(wildcard $(TARGET_ARCH)/*.S)
+ARCH_SOBJ = $(ARCH_SSRC:.S=.o)
+ARCH_SOBJ_PIC = $(ARCH_SOBJ:.o=.os)
+
+OBJS = $(COBJ) $(SOBJ) $(MOBJ)
+OBJS_PIC = $(COBJ_PIC) $(SOBJ_PIC) $(MOBJ_PIC)
+
+ARCH_OBJS = $(ARCH_COBJ) $(ARCH_SOBJ)
+ARCH_OBJS_PIC = $(ARCH_COBJ_PIC) $(ARCH_SOBJ_PIC)
+
+$(COBJ): %.o : %.c
+	$(compile.c) $(DISABLE_PIC)
+
+$(MOBJ): $(MSRC)
+	$(compile.c) $(DISABLE_PIC) -DL_$(patsubst %.o,%, $@)
+
+$(SOBJ): %.o : %.S
+	$(compile.S) $(DISABLE_PIC)
+
+$(COBJ_PIC): %.os : %.c
+	$(compile.c) $(PICFLAG)
+
+$(MOBJ_PIC): $(MSRC%)
+	$(compile.c) $(PICFLAG) -DL_$(patsubst %.os,%, $@)
+
+$(SOBJ_PIC): %.os : %.S
+	$(compile.S) $(PICFLAG)
+
+$(ARCH_COBJ): %.o : %.c
+	$(compile.c) $(DISABLE_PIC)
+
+$(ARCH_SOBJ): %.o : %.S
+	$(compile.S) $(DISABLE_PIC)
+
+$(ARCH_COBJ_PIC): %.os : %.c
+	$(compile.c) $(PICFLAG)
+
+$(ARCH_SOBJ_PIC): %.os : %.S
+	$(compile.S) $(PICFLAG)
+
+#ifeq ($(strip $(OBJ_DIR)),)
+#OBJ_DIR = $(patsubst %libc/,, $(shell pwd))
+#endif
+OBJ_FILE = $(subst /,., $(OBJ_DIR))
+OBJ_LIST = $(patsubst %,$(TOPDIR)libc/obj.%, $(OBJ_FILE))
+OBJ_LIST_PIC = $(patsubst %,$(TOPDIR)libc/obj_pic.%, $(OBJ_FILE))
+
+ifeq ($(DOPIC),y)
+objs: $(OBJ_LIST_PIC)
+else
+objs: $(OBJ_LIST) $(OBJ_LIST_PIC)
+endif
+
+$(OBJ_LIST): $(OBJS)
+	$(STRIPTOOL) -x -R .note -R .comment $^
+	echo $(patsubst %,$(OBJ_DIR)/%, $^) > $@
+
+$(OBJ_LIST_PIC): $(OBJS_PIC)
+	$(STRIPTOOL) -x -R .note -R .comment $^
+	echo $(patsubst %,$(OBJ_DIR)/%, $^) > $@
+
+# libraries
+#LIB_NAME=libsome
+AR_LIB_NAME = $(TOPDIR)lib/$(LIB_NAME).a
+AR_PIC_LIB_NAME = $(LIB_NAME)_pic.a
+ifeq ($(strip $(SO_LIB_NAME)),)
+SO_LIB_NAME = $(TOPDIR)lib/$(LIB_NAME).so
+endif
+ifeq ($(strip $(SO_FULL_NAME)),)
+SO_FULL_NAME = $(LIB_NAME)-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
+endif
+ifeq ($(strip $(SO_MAJOR_NAME)),)
+SO_MAJOR_NAME = $(LIB_NAME).so.$(MAJOR_VERSION)
+endif
+
+interp := $(TOPDIR)libc/misc/internals/interp.os
+ifeq ($(strip $(EXTRA_LINK_LIBS)),)
+EXTRA_LINK_LIBS = $(interp) -L$(TOPDIR)lib -lc $(LDADD_LIBFLOAT) $(LIBGCC)
+endif
+
+libs: libs_shared $(AR_LIB_NAME)
+ifeq ($(HAVE_SHARED),y)
+libs_shared: $(SO_LIB_NAME)
+else
+libs_shared:
+endif
+
+$(AR_PIC_LIB_NAME): $(OBJS_PIC) $(ARCH_OBJS_PIC)
+	$(RM) $@
+ifneq ($(strip $(STRIP_FLAGS)),)
+	$(STRIPTOOL) $(STRIP_FLAGS) $^
+else
+	$(STRIPTOOL) -x -R .note -R .comment $^
+endif
+	$(AR) $(ARFLAGS) $@ $(OBJS_PIC)
+ifneq ($(strip $(ARCH_OBJS_PIC)),)
+	$(AR) $(ARFLAGS) $@ $(ARCH_OBJS_PIC)
+endif
+
+ifeq ($(DOPIC),y)
+$(AR_LIB_NAME): $(AR_PIC_LIB_NAME)
+	$(INSTALL) -d $(TOPDIR)lib
+	$(RM) $@
+	cp $< $@
+else
+$(AR_LIB_NAME): $(OBJS) $(ARCH_OBJS)
+	$(INSTALL) -d $(TOPDIR)lib
+	$(RM) $@
+ifneq ($(strip $(STRIP_FLAGS)),)
+	$(STRIPTOOL) $(STRIP_FLAGS) $^
+else
+	$(STRIPTOOL) -x -R .note -R .comment $^
+endif
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+ifneq ($(strip $(ARCH_OBJS)),)
+	$(AR) $(ARFLAGS) $@ $(ARCH_OBJS)
+endif
+endif
+
+$(SO_LIB_NAME): $(AR_PIC_LIB_NAME)
+	$(INSTALL) -d $(TOPDIR)lib
+	$(RM) $(TOPDIR)lib/$(SO_FULL_NAME) $(TOPDIR)lib/$(SO_MAJOR_NAME) $@
+	$(LD) $(LDFLAGS) -soname=$(SO_MAJOR_NAME) -o $(TOPDIR)lib/$(SO_FULL_NAME) \
+		$(EXTRA_LINK_OPTS) $(SHARED_START_FILES) --whole-archive $< \
+		--no-whole-archive $(EXTRA_LINK_LIBS) $(SHARED_END_FILES)
+	$(LN) -sf $(SO_FULL_NAME) $(TOPDIR)lib/$(SO_MAJOR_NAME)
+	$(LN) -sf $(SO_FULL_NAME) $@
+
+# crt stuff
+ifeq ($(HAVE_ELF),y)
+CRT = crt1
+else
+CRT = crt0
+endif
+
+CTOR_TARGETS := $(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o
+
+crts: $(TOPDIR)lib/$(CRT).o $(TOPDIR)lib/S$(CRT).o $(CTOR_TARGETS)
+
+$(TOPDIR)lib/$(CRT).o: $(CRT).S
+	$(compile.S) $(DISABLE_PIC) -DL_$*
+	$(STRIPTOOL) -x -R .note -R .comment $@
+
+$(TOPDIR)lib/S$(CRT).o: $(CRT).S
+	$(compile.S) $(PIEFLAG) -DL_$*
+	$(STRIPTOOL) -x -R .note -R .comment $@
+
+ifeq ($(UCLIBC_CTOR_DTOR),y)
+$(TOPDIR)lib/crti.o: crti.S
+	$(INSTALL) -d $(TOPDIR)lib/
+	$(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
+
+$(TOPDIR)lib/crtn.o: crtn.S
+	$(INSTALL) -d $(TOPDIR)lib/
+	$(compile.S) $(PICFLAG) $(SSP_DISABLE_FLAGS)
+else
+$(CTOR_TARGETS):
+	$(INSTALL) -d $(TOPDIR)lib/
+	$(AR) $(ARFLAGS) $@
+endif
+
+# addons
+headers:
+
+tags:
+	ctags -R
+
+clean:
+	$(RM) *.o *.os *.a
+ifneq ($(strip $(ARCH_DIR)),)
+	$(RM) $(ARCH_DIR)/*.o $(ARCH_DIR)/*.os
+endif
+
+subdirs: $(patsubst %, _dir_%, $(DIRS))
+subdirs_clean: $(patsubst %, _dirclean_%, $(ALL_SUBDIRS))
+
+$(patsubst %, _dir_%, $(DIRS)) : dummy
+	$(MAKE) -C $(patsubst _dir_%, %, $@)
+
+$(patsubst %, _dirclean_%, $(ALL_SUBDIRS)) : dummy
+	$(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
+
+.PHONY: dummy
+#